Table 2.

Typical SSU-rRNA sequence divergence in selected divisions

DivisionTypical % differencea
Cyanobacteria13
Fusobacteria13
Termite group 115
TM716
OP1017
Thermus/Deinococcus 17
Actinobacteria (high G+C gram positive)18
Nitrospira 19
Thermotogales 19
Acidobacteria20
Green sulfur20
Verrucomicrobia20
Cytophagales 22
Spirochetes22
Green nonsulfur23
Planctomycetes23
Proteobacteria (α–ɛ)23
Low G+C gram positive24
WS626
OP1133
  • a Taxa were selected from the ARB database to obtain approximately average sequence divergences within the divisions. The maximum percent differences in the sequence set (lane mask [8]) are listed. Chloroplast and mitochondrial sequences were excluded from this analysis.